Organic-matter-rich shales of China

C Zou, R Zhu, ZQ Chen, JG Ogg, S Wu, D Dong… - Earth-Science …, 2019 - Elsevier
Organic-matter-rich shales are the main target rocks for unconventional oil and gas
exploration and development across the world. In China, shale-gas geological resources …

Total organic carbon, organic phosphorus, and biogenic barium fluxes as proxies for paleomarine productivity

SD Schoepfer, J Shen, H Wei, RV Tyson, E Ingall… - Earth-Science …, 2015 - Elsevier
Although marine productivity is a key parameter in the global carbon cycle, reliable
estimation of productivity in ancient marine systems has proven difficult. In this study, we …

Permian–Triassic mass extinction pulses driven by major marine carbon cycle perturbations

H Jurikova, M Gutjahr, K Wallmann, S Flögel… - Nature …, 2020 - nature.com
Abstract The Permian/Triassic boundary approximately 251.9 million years ago marked the
most severe environmental crisis identified in the geological record, which dictated the …

Ocean acidification and the Permo-Triassic mass extinction

MO Clarkson, SA Kasemann, RA Wood, TM Lenton… - Science, 2015 - science.org
Ocean acidification triggered by Siberian Trap volcanism was a possible kill mechanism for
the Permo-Triassic Boundary mass extinction, but direct evidence for an acidification event …

Marine productivity changes during the end-Permian crisis and Early Triassic recovery

J Shen, SD Schoepfer, Q Feng, L Zhou, J Yu… - Earth-Science …, 2015 - Elsevier
The latest Permian mass extinction (LPME) coincided with major changes in the composition
of marine plankton communities, yet little is known about concurrent changes in primary …

Multiple episodes of extensive marine anoxia linked to global warming and continental weathering following the latest Permian mass extinction

F Zhang, SJ Romaniello, TJ Algeo, KV Lau… - Science …, 2018 - science.org
Explaining the~ 5-million-year delay in marine biotic recovery following the latest Permian
mass extinction, the largest biotic crisis of the Phanerozoic, is a fundamental challenge for …

Major and trace element geochemistry of the lacustrine organic-rich shales from the Upper Triassic Chang 7 Member in the southwestern Ordos Basin, China …

Q Li, S Wu, D Xia, X You, H Zhang, H Lu - Marine and Petroleum Geology, 2020 - Elsevier
Lacustrine organic-rich shales are widespread in the Upper Triassic Yanchang Formation
Chang 7 Member of the Ordos Basin. However, information on the short-term climate …

Impacts of global warming on Permo-Triassic terrestrial ecosystems

MJ Benton, AJ Newell - Gondwana Research, 2014 - Elsevier
Geologists and palaeontologists have expressed mixed views about the effects of the end-
Permian mass extinction on continental habitats and on terrestrial life. Current work …

Uranium concentrations and 238U/235U isotope ratios in modern carbonates from the Bahamas: Assessing a novel paleoredox proxy

SJ Romaniello, AD Herrmann, AD Anbar - Chemical Geology, 2013 - Elsevier
In order to validate the use of 238 U/235 U as a paleoredox proxy in carbonates, we
examined the incorporation and early diagenetic evolution of U isotopes in shallow …

Carbon-cycle changes during the Toarcian (Early Jurassic) and implications for regional versus global drivers of the Toarcian oceanic anoxic event

MN Remírez, TJ Algeo - Earth-Science Reviews, 2020 - Elsevier
Abstract The Early Jurassic Toarcian oceanic anoxic event (T-OAE) is characterized by an
extinction event, a major sea-level rise, enhanced marine primary productivity, elevated …